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The contingent valuation of natural parks : assessing the warmglow propensity factor
Nunes, Paulo A. L. D., (2002)
The ecological economics of biodiversity : methods and policy applications
Nunes, Paulo A. L. D., (2003)
Measuring the economic benefits or protecting the Parque Natural do Sudoeste Alentejano e Costa Vicentina from commercial tourism development : results from a contingent valuation survey